/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.example.quickstart;

import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

import java.util.UUID;

/**
 * This class demonstrates how to send messages to brokers using provided {@link DefaultMQProducer}.
 */
public class Producer {
    public static void main(String[] args) throws MQClientException, InterruptedException {

        /*
         * Instantiate with a producer group name.
         */
        DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");

        producer.setNamesrvAddr("127.0.0.1:9876");
        /*
         * Specify name server addresses.
         * <p/>
         *
         * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
         * <pre>
         * {@code
         * producer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
         * }
         * </pre>
         */


        //默认不开启
        producer.setSendLatencyFaultEnable(true);


        /*
         * Launch the instance.
         */
        producer.start();

//        oneSend(producer);
        oneSendLongWait(producer);
//        oneSendAndDelay(producer);
//        delaySend(producer);
//        batchSend(producer);

        /*
         * Shut down once the producer instance is not longer in use.
         */
        producer.shutdown();
    }

    private static void oneSend(DefaultMQProducer producer) throws InterruptedException {
        try {

            /*
             * Create a message instance, specifying topic, tag and message body.
             */
            Message msg = new Message("topic-demo" /* Topic */,
//                Message msg =msg new Message("TopicTest" /* Topic */,
                    "TagA" /* Tag */,
                    ("疯狂创客圈 Java高并发 卷王 ").getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
            );

            /*
             * Call send message to deliver message to one of brokers.
             */
            SendResult sendResult = producer.send(msg);
            System.out.printf("%s%n", sendResult);
        } catch (Exception e) {
            e.printStackTrace();
            Thread.sleep(1000);
        }

    }

    private static void oneSendLongWait(DefaultMQProducer producer) throws InterruptedException {
        try {

            /*
             * Create a message instance, specifying topic, tag and message body.
             */
            Message msg = new Message("topic-demo" /* Topic */,
//                Message msg =msg new Message("TopicTest" /* Topic */,
                    "TagA" /* Tag */,
                    "KEY:" + UUID.randomUUID(),
                    ("疯狂创客圈 Java高并发 卷王 ").getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
            );

            /*
             * Call send message to deliver message to one of brokers.
             */
            SendResult sendResult = producer.send(msg,1000000);
            System.out.printf("%s%n", sendResult);
        } catch (Exception e) {
            e.printStackTrace();

        }
        Thread.sleep(Integer.MAX_VALUE);
    }

    private static void oneSendAndDelay(DefaultMQProducer producer) throws InterruptedException {
        try {

            /*
             * Create a message instance, specifying topic, tag and message body.
             */
            Message msg = new Message("topic-demo" /* Topic */,
//                Message msg =msg new Message("TopicTest" /* Topic */,
                    "TagA" /* Tag */,
                    ("疯狂创客圈 Java高并发 卷王 ").getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
            );

            /*
             * Call send message to deliver message to one of brokers.
             */
            SendResult sendResult = producer.send(msg);
            System.out.printf("%s%n", sendResult);
        } catch (Exception e) {
            e.printStackTrace();

        }
        Thread.sleep(Integer.MAX_VALUE);
    }

    private static void batchSend(DefaultMQProducer producer) throws InterruptedException {
        for (int i = 0; i < 1000 * 1000; i++) {
            try {

                /*
                 * Create a message instance, specifying topic, tag and message body.
                 */
                Message msg = new Message("topic-demo" /* Topic */,
//                Message msg =msg new Message("TopicTest" /* Topic */,
                        "TagA" /* Tag */,
                        ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
                );

                /*
                 * Call send message to deliver message to one of brokers.
                 */
                SendResult sendResult = producer.send(msg);

                if (i % 10000 == 0)
                    System.out.printf("%s%n", sendResult);
            } catch (Exception e) {
                e.printStackTrace();
                Thread.sleep(1000);
            }
        }
    }

    private static void delaySend(DefaultMQProducer producer) throws InterruptedException {

        try {
            Message message = new Message("topic-demo", ("Java高并发 卷王 1000").getBytes());
            // 设置延时等级3,这个消息将在10s之后发送(现在只支持固定的几个时间,详看delayTimeLevel)
            message.setDelayTimeLevel(3);
            // 发送消息
            producer.send(message);

        } catch (Exception e) {
            e.printStackTrace();
            Thread.sleep(1000);
        }
    }
}
